- Adequate hepatic and renal function documented within 14 days prior to treatment AST and ALT ≤2.5x upper limit of normal (ULN), unless liver metastases present, in which case ≤5.0xULN Total bilirubin ≤2.5xULN Serum creatinine ≤1.5xULN or calculated creatinine clearance ≥60ml/min Urinary protein <1+ by urine dipstick. If ≥1+, then 24-hour urine collection should be done and may only be enrolled if urine protein is <2g/24hours